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regex vs startsWith

Benchmark created on August 28, 2025

Setup

const a = "2.2.840.10008.5.1.4.1.1.77.1.1"

Test runner

Ready to run.

Test Ops/sec

regex

Testing in
Test	Ops/sec
regex	`a.match(/^1\.2\.840\.10008\.5\.1\.4\.1\.1\.7\.?/)`	ready
StartsWith	`a === "1.2.840.10008.5.1.4.1.1.7" \|\| a.startsWith('1.2.840.10008.5.1.4.1.1.7.')`	ready
IndexOf	`a === "1.2.840.10008.5.1.4.1.1.7" \|\| a.indexOf('1.2.840.10008.5.1.4.1.1.7.') === 0`	ready

a.match(/^1\.2\.840\.10008\.5\.1\.4\.1\.1\.7\.?/)

ready

StartsWith

a === "1.2.840.10008.5.1.4.1.1.7" || a.startsWith('1.2.840.10008.5.1.4.1.1.7.')

ready

IndexOf

a === "1.2.840.10008.5.1.4.1.1.7" || a.indexOf('1.2.840.10008.5.1.4.1.1.7.') === 0

ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published on August 28, 2025